Road grader



N. W. FINCH ROAD GRADER Dec. 1 1923.

Filgad Jan.- 18, 1923 3 Sheets-Sheet 1 N. W. FINCH ROAD GRADER Filed Jan. 18, 1923, 3 Sheets-Sheet 2 Mil 11ml,

Dec. 11, 1923. 1,476,881

N. w. FINCH ROAD GRADER 61cm may.

Patented Dec. 115192;

mti i' ggelnoetor ONE-HALF T STEPHEN A, ERADILEY; 0F SPRINGFIELD, ILLINOIS.

, 316K!) eeibee.

" To al -wean y 02mm;

citizen of the United 'iis a specifieittion.

-' that changes. in the "ii r'cise' embodiment of theixiventionwhereifig'disclcse'd; may he made depiinting "fr'om"'the'* spirit Got the 'inveiiti'on. Referringtovtthe: drawings; 3 v ,1

(Figure 1 I aside ielevatio naltview :ef fa; roa d iiriechihe'eco smucted' in ticcorda ce 'w't'ith the Wafdlyits ihdi 1Q Fret/idling 2/ platform Inechi'ne' bf this; character,

thereto, "for i pivotal connectioh when hitched we I I to the side rails atta point ipterfi ediete the er 'ds' thereof, is 'aqb'racket'merhber 17,

.w'tithin the isecpeinf' whait is claimed, Withut flanges 23 disposed the heife emanate a s t seaan tlgepgs gt'cta ieletion with eech ether, the f fdfwaid gends thc'reef extending downwardlyes atg fi whe re the same have connection ith the bar T that holds the forward endscf'the railsh in proper spaced i'elatich with ,jeach other. ,The

' eapends ofthe tails 5 ia'ls extehd dbwncatecl at 8, the extremities therepf extending horizontally asat 9 Where the same are connectedhy meeps of plate b fjt eqp zeto bf the machine; end atthe seine timefei'ihing a siip'po rt for the sez tt 11. At the'reer cf the machine is zui'e xle on which the eap sup opti'ng fivhee1s 13 are ihciinted,

that the machine.

the stipporting"tsuiface of which lies a plane with the bar 7 .This bracket member provides a sup'pbgrtfer fone ehdbf the, ch

'Iiel iron 1,8;that has its fctwtid elid seciired to -the bar"? as means bfth'e bolt 19. I

Secured to theche nel-irc l8 ise transhar 2O p et iiledl with versely extending icpehi'ngs toi accdm'm'e'diite} the lower ends 6f the curved pulley 'suppoi'tihg arms 21'. Suppol techebqve the ch'eniielii'on '18 is ah ihverte'd channel iron -22'thzit has .d 'epen li iig in spaced releticn with ideways between which i'ieges'z'mcve. Each of these carpiages'cbmpriseseh angle iron 25] that contacts with the; iriner surfaces the ending carthe flanges of the channel ii'ol 18't0 prettide of adjacent flangesfif theeilg'le iz o'ps as clearly shown by FigmeA cfthe drawings,

the Webbed pcrtichsfifict the cal-ridges e2;-

tendifig throughthe spices between the have cbhhecticii with the pla 27 I ath e e's i'esjeectivelyft he' plates beilig s'howh as eie d gnb t t c t e es of e Web mafifir tepe rniit Off pivotal hict eihent ef The plate 27 of each caz 'riage has an upwardly extending end portion 31 adapted to cooperate with the pivoted locking members' 32 f These pivoted locking members 32 are supported above the rods 33 that have their "forward ends positioned in the bracket ymember 34,the.rear ends thereof, extending I through the bracket member 35, the extreme I ends of the rods 33 extending upwardly as at'36 providing means for rocking or pivotingthe locking members, 32, into and out of theiractive positions." I

vAsshown, these locking members 32 are f provided "with notches extending throughout the'length's thereof, which notches accommodate the upwardly extended end por I tions 31 of the carriages; tolock the carriages 1n their adjusted positions;

The supporting ,bars 3O have their foriward'en'ds' curved downwardly as at 37 and haVefconnection with the scraping blades 38,- as at 39, the connection 39 being such as to permit of pivotal movement of the blades with respect to'the supporting arm The blades have their rear ends pivotally connected' tothe vertically movable angle bar 40 whereby the outer ends of the scraping blades be adjusted laterally to vary the distance between the blades at their outerv ends, and to regulate the angle at .whichthe blades operate.

Bearing members 41' are secured to the opening to receive the rod 44, the ends of the rod 44 extending through the angle "iron40 as clearly shown by Figure 3 of the drawings. i Thus it will be seen thatby moving the rod 42,-the rear ends of the scraping blades may beadjusted vertically. with respect to the ground surface over which they operate.

One end of the rod 42 has connection with the lever 45 that operates in proximity to I positions to clear the. ground surface and throw the blades out of operation when the machine is moved from place to place.

The upper ends of the arms 21 extend thereon or unwoundtherefrom' The inter- "mediate portions of the cables operate over the pulleys 5O supported'at the forward end of the scrapping blade, while the opposite ends of the cables are connected with the drums 51 loosely mounted on the shaft 52 that carries sprocket wheels 53 on the outer ends thereof.

Splined on the shaft 52 are clutch members 54 that have clutch faces cooperating with the clutch faces 55 carried by the drums 51, the clutch members being controlled by the clutch levers 56 whereby the clutches may be operatedtoclamp the drums to the shalt tocause the-same to wind the cables on the drums to accomplish the adjustment of the I blades, towards and away from the frame of:

the machine.

Chains 57 connect the sprocket wheels 114 with the sprockets 53, whereby rotary movement of the wheels 13 is imparted to the shaft 52. If it is desired to move the scrap ing blades inwardly, the clutches are moved to clutch the drums 51 to the shaft 52 to cause the winding of the cable as described.

The drums 49 are mounted on the for ward ends of the rods 58, the rear ends of the rod being supported by means of the bracket member 59. Controlling wheels 60 are mounted on the rear ends of the rods 58 and disposed in proximity to the operators seat 11, whereby the operator may, by rotating the rods 58 wind the cables on the drums 49 to accomplish the adjustment of the scraping blades. siderails 5 and support the rod 42 to which. "the arm 43 is connected, the arm 43 extend- 3 ing downwardly. and being formed with an In order that the inner ends of the setup I ing blades will be held against movement,

brace rods 61- are provided, which have their forward ends secured under the channel iron 18, while the opposite ends have connection with the member 40 as at 62.

In the operation of the machine, the machine is positioned on the road surface to be graded whereupon the blades are lowered by operating the lever 45, the drums 49 are now operated to allow the cables to unwind therefrom, while the machine is being moved over the ground'surface, to the end that the scraping blades contacting with the road surface are moved outwardly until the cables are taut. It is to be understood that prior to this movement, the locking members 32 are moved out of engagement with the upwardly extended portions 31 of the carriages, and that when the scraping bladeshavebeen moved to their proper scraping angles, the locking members 32 are returned to their active positions to hold the scrap- I I I I ing blades against movement. laterally as clearly shown by Figure 2 of the drawings, where they support the pul- .51 to move the forward ends of the blades inwardly.

The lever 45 is now operated to raise the rear ends of the scraping blades out of contact with the ground surface permitting the machine to be moved from place to place.

Til

7 laterally movable scraping blades supported under the frame, supporting bars having connection with the scraping blades, carmovable on the frame, said carriages having pivotal connection with the supporting bars, each of said carriages having an upwardly extending end portion, pivoted locking members associated with the carriages and having notches, said pivoted locking members adapted tobe moved to cause the upwardly extended end portions of the carriages to lie within notches of the locking members to restrict movement of the carriages, and means for permitting lateral movement of thescraping blades.

2. In a road scraping machine, a frame, laterally adjustable blades supported under the frame, cables having connection with the blades, manually controlled drumssupported on the frame and on which one of the ends of the cables are Wound, power controlled drums on which the opposite ends of the cables are wound, said drums adapted to be operated to move the blades with respect to the frame, andmeans for adjusting the rear ends of the blades with re spect'to the ground'surfaoe.

3. In a road "scraping machine, a frame, scraping blades supported by the frame and having their rear ends pivotally mounted at the rear of the frame, movable supported by the frame, locking having notches disposed above the carriages said locking frames having means engaging between the notches to lock the carriages against movement, and means for connecting'the carriages and forward ends of the scraping blades to cause a relative movecarriages ment of the scraping blades when the carriages are moved longitudinally of the frame. 7

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

NATHAN V FINGH.

members 40 

